Adjusting The Bias For The Transfer Roller - Oce 3121 Technical & Service Manual

Adjustments

1 Adjusting the bias for the transfer roller

If image faults occur, as a result of an incorrect transfer charging roller bias,
the transfer bias may be adjusted. Carry out 'TRN-1', 'TRN-2TS', or
'TRN-20L' in service mode (*3*; ADJUST).
An image fault may be any of the following:
Background is noted in the margin along the trailing edge, because of stray to-
1
ner.
The density of copies increases every 94 intervals (approximately) when ma-
2
king half-tone copies (entire surface).
In the case of "1", increase the setting; in the case of "2", decrease the setting.
Use TRN-1 to adjust the transfer bias for copying on the 1st side.
I
Use TRN-2ST to adjust the transfer bias for copying on the 2nd side of a
I
two-sided copy.
Use TRN-20L to adjust the transfer bias for copying on the 2nd side of an
I
overlay copy.
ed.1 06 Transfer 301